On Fri, Dec 11, 2020 at 3:23 PM, Gary Wittman via groups.io

<gary.wittman@...> wrote:

Today is the day to replace the check valve for the master cylinder power booster.? The new part appears to be a perfect fit but is not 100% identical to the?old one overall,?however close.?
Removal of the old check valve did not go as planned.? When I glued the check valve back together so I could drive the car home safely, it bonded to the rubber grommet also.? I could not separate them so I had to remove the check valve and grommet together.??This broke the part of the check valve that goes inside the grommet.? I pretty much expected that.? Unfortunately, as I pulled them out some of the broken check valve fell into the booster.? That meant I had to remove the booster to get the pieces of plastic out.?
To get the booster out, I had to remove the master cylinder.? Once I did that, I discovered it had a small leak into the booster.? I have not taken the master cylinder apart yet to see if I can rebuild it or buy a new one.
I was able to get the plastic pieces out of the booster but realized I needed to open the booster to clean out the brake fluid that had built up in it.? I cleaned it up and it doesn't look like the brake fluid damaged anything.? It appears to have been rebuilt at some time because there was some pitting where brake fluid?had been sitting before?and caused some corrosion when it absorbed moisture from the air.? The was no rust and it appears to have some kind of corrosion resistant finish on it.? So, I know the pitting is not from the brake fluid leak this time.?
Once the booster was out I had good access to the shifter linkage.??The linkage?has always had a little play?in it but was not bad and I just lived with it.? Of course, could not help myself and had to take a closer look at the linkage.? I found one of the connections is worn and I will probably take that apart to see what I can do to repair that.?
I need to stop looking elsewhere or I might have the whole car apart.

Gary in SoCal

On Fri, Dec 11, 2020 at 3:23 PM, Gary Wittman via groups.io

<gary.wittman@...> wrote:

Today is the day to replace the check valve for the master cylinder power booster.? The new part appears to be a perfect fit but is not 100% identical to the?old one overall,?however close.?
Removal of the old check valve did not go as planned.? When I glued the check valve back together so I could drive the car home safely, it bonded to the rubber grommet also.? I could not separate them so I had to remove the check valve and grommet together.??This broke the part of the check valve that goes inside the grommet.? I pretty much expected that.? Unfortunately, as I pulled them out some of the broken check valve fell into the booster.? That meant I had to remove the booster to get the pieces of plastic out.?
To get the booster out, I had to remove the master cylinder.? Once I did that, I discovered it had a small leak into the booster.? I have not taken the master cylinder apart yet to see if I can rebuild it or buy a new one.
I was able to get the plastic pieces out of the booster but realized I needed to open the booster to clean out the brake fluid that had built up in it.? I cleaned it up and it doesn't look like the brake fluid damaged anything.? It appears to have been rebuilt at some time because there was some pitting where brake fluid?had been sitting before?and caused some corrosion when it absorbed moisture from the air.? The was no rust and it appears to have some kind of corrosion resistant finish on it.? So, I know the pitting is not from the brake fluid leak this time.?
Once the booster was out I had good access to the shifter linkage.??The linkage?has always had a little play?in it but was not bad and I just lived with it.? Of course, could not help myself and had to take a closer look at the linkage.? I found one of the connections is worn and I will probably take that apart to see what I can do to repair that.?
I need to stop looking elsewhere or I might have the whole car apart.

Gary in SoCal

Gary I hate to be the bearer of bad news, but if you had brakes when the engine was

running, then you don't have enough cam. Just saying....

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  I am Linc..... What more could you possibly need to know?
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On Tue, 2020-12-08 at 09:51 -0800, Gary Wittman via groups.io wrote:

The booster check valve I purchased on eBay arrived today.? It looks to be of decent quality and it appears to the same as the one that broke.? I will install it Friday to see how it works, but I expect it should work fine.

I realized the flap or what ever makes the check valve work must have fallen out when the check valve broke.? After I glued it back together, I have good brakes as long as the engine is running but as soon as the engine is off, immediately there is little to no brakes.

The booster check valve I purchased on eBay arrived today.? It looks to be of decent quality and it appears to the same as the one that broke.? I will install it Friday to see how it works, but I expect it should work fine.

I realized the flap or what ever makes the check valve work must have fallen out when the check valve broke.? After I glued it back together, I have good brakes as long as the engine is running but as soon as the engine is off, immediately there is little to no brakes.

Dave, my ol' roommate,

Your hoodscoop description is correct.

As for Boss 429 option availability, I wonder about that.
Given the very low production numbers, under 600 for 1970, I wonder
if you just had to, "take what was currently available".

It would be interesting to hear from someone who actually knows about that.

You mentioned that the car might look like a, "sleeper".? You nailed it pal.

One time there was a Royal Canadian Mounted Police, R.C.M.P. car beside me
with two cops in it. We were stopped beside each other at a stop light.

I was in the right lane, they were in the left lane. The cop next to me lowered
his window and said to me, "Hey, what have you got in that thing", I said to him,
"look at the Fender Decal". He did and said, "Oh". He had no clue.

Another time it was around 22:30, I was driving the Boss 429 to work as a switchman
at the C.N.R. Vancouver Main Yard from, "the house", in Port Moody. On this night I
had with me, my friend Dean, who was going to go for a train ride with me on my
job that night. So Dean was with me.

The trip from Port Moody to Vancouver involves a westbound drive on the Barnet Highway,
which turns into East Hasting Street which takes you all the way to downtown Vancouver.

We are stopped at a traffic light on East Hastings Street, beside me in a 69 or 70 428 CJ Mach 1.

So we completely Drag Raced every red light for at least 4 blocks. Holyeee Schmoleyoh,
was that fun. This was pre L-50 15 days, stock tires. Pretty well a tie race every time.
At the 5th? Stop light he yelled out his window, "whaddya got in that thing?". I said,
"Stock Boss 429, what do you have?, Read the Fender". He went on and on about his 428 CJ and what
he had done to it. Can't recall exactly but I believe it was things like cam, headers, etc.

I was learning how to street drive the 9 quite well by then. Ya have to learn fast or perish.

Another thing I have to say is that we did this very serious drag racing, on a Main Drag
into the City of Vancouver, and made a, "ton", of noise while we were doing it, and there
was never the slightest hint of any Police presence.

In my advanced age, the idea of being able to repeat the event with no consequences,
is just out of the question, but it makes a good story.

So, Dave, you nailed it, it was always a sleeper before it got the L50-15s. Hmmm, maybe
with the huge back tires, most took it as a, "wannabe". Interesting thought.

Hope Y'all enjoyed this episode.

Cheerio,

Pete from the Loops
.

On 2020-11-30 7:26 p.m., D. Hadley via groups.io wrote:

From what I remember the Boss 9 hood scoop was a LOT bigger (huge/wider) than any other Ford hood scoop at the time and unique to the Boss 9. IIRC the Boss 302 had a different setup & may have been the same or very similar as the CJ/SCJ scoops, don't know for sure.

As for the chin spoiler it may have been an option that could have been both factory & dealer options or could have been a dealer option. It could have also been an over the counter deal. It is possible it could have been intentionally ordered "Delete", maybe so the car would look more a sleeper as outside of the scoop & BOSS 429 decals on the side one would/might think it was a "Plain Jane Mustang" with the chin spoiler missing? Who knows.

What we do know is back then one could almost order a car anyway wanted outside of what was listed as available on the option sheet for that model as long as the sales person knew the ins & outs of the system & knew how to get factory approval for adding options not on the list for that model.

Looking forward to more stories. :)

David from WNY

On Monday, November 30, 2020, 06:54:44 PM EST, Linc wrote:

The Boss 429 used a unique hood scoop. The Mach I used the same scoop as our cars. I

cannot answer the other questions.

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============================================================ I am Linc..... What more could you possibly need to know?============================================================

On Mon, 2020-11-30 at 15:47 -0500, Tony Avak wrote:

I was looking at the photo of Pete's Mustang and had a couple of

questions.? Is that Mustang hood scoop the same as the one used on our R

code cars or are they different from each other?? Also, when they came

from the factory were the hood scoops painted the same color as the car

body, were they painted black, or could you order it either way??

Thanks.? Oh, and that's a great photo, by the way.

Tony

From what I remember the Boss 9 hood scoop was a LOT bigger (huge/wider) than any other Ford hood scoop at the time and unique to the Boss 9. IIRC the Boss 302 had a different setup & may have been the same or very similar as the CJ/SCJ scoops, don't know for sure.

As for the chin spoiler it may have been an option that could have been both factory & dealer options or could have been a dealer option. It could have also been an over the counter deal. It is possible it could have been intentionally ordered "Delete", maybe so the car would look more a sleeper as outside of the scoop & BOSS 429 decals on the side one would/might think it was a "Plain Jane Mustang" with the chin spoiler missing? Who knows.

What we do know is back then one could almost order a car anyway wanted outside of what was listed as available on the option sheet for that model as long as the sales person knew the ins & outs of the system & knew how to get factory approval for adding options not on the list for that model.

Looking forward to more stories. :)

David from WNY

On Monday, November 30, 2020, 06:54:44 PM EST, Linc <linc@...> wrote:

The Boss 429 used a unique hood scoop. The Mach I used the same scoop as our cars. I

cannot answer the other questions.

-- 

============================================================ I am Linc..... What more could you possibly need to know?============================================================

On Mon, 2020-11-30 at 15:47 -0500, Tony Avak wrote:

I was looking at the photo of Pete's Mustang and had a couple of

questions.? Is that Mustang hood scoop the same as the one used on our R

code cars or are they different from each other?? Also, when they came

from the factory were the hood scoops painted the same color as the car

body, were they painted black, or could you order it either way??

Thanks.? Oh, and that's a great photo, by the way.

Tony

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